• 2008 GMC Sierra 3500 ECM Engine Control Module 12612384, front view showing connectors.
  • Programmed 12603892 ECM for 2007 GM trucks and SUVs, ready for installation.
  • Programmed 2003-2007 Sierra 3500 PCM 12589463, front view showing connectors.
  • Engine Control Module ECM 12633055 for a 2010 GMC Sierra 3500, front view showing the main electrical connectors.

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